Methods and apparatus for waveform design and signaling for energy harvesting
地域：
DE
DE Wilmington
摘要
A method implemented in a wireless transmit/receive unit (WTRU) for wireless communications includes receiving a signal sequence from a base station (BS) and generating a channel quality indicator (CQI) indication based on the signal, transmitting the CQI indication to the BS, receiving a first control message from the BS comprising configuration information, wherein the configuration information includes information elements for configuring CQI subgroups, determining a CQI subgroup identifier (ID) based on the information elements included in the received first control message, and transmitting an energy harvesting feedback using at least one resource associated with the CQI subgroup ID.
說明書
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This application claims the benefit, under 35 U.S.C. 371 of International Application PCT/US2020/033306, filed May 16, 2020, which the benefit of U.S. Provisional Application No. 62/849,640 filed in the U.S. Patent and Trademark Office on May 17, 2019, which is incorporated herein by reference in its entirety.
Embodiments disclosed herein generally relate to wireless communication networks. For example, various embodiments disclosed herein are related to waveform design and signaling for energy harvesting (e.g., downlink energy harvesting) in a wireless network.
A more detailed understanding may be had from the detailed description below, given by way of example in conjunction with drawings appended hereto. Figures in such drawings, like the detailed description, are examples. As such, the Figures and the detailed description are not to be considered limiting, and other equally effective examples are possible and likely. Furthermore, like reference numerals in the figures indicate like elements, and wherein:
權(quán)利要求
What is claimed is:1. A method implemented in a wireless transmit/receive unit (WTRU) for wireless communications, the method comprising:receiving a signal from a base station (BS) and generating a channel quality indication (CQI) based on the signal; transmitting the CQI to the BS; receiving a first control message from the BS comprising configuration information, wherein the configuration information includes information elements for configuring CQI subgroups; determining a CQI subgroup identifier (ID) based on the information elements included in the first control message; and transmitting an energy harvesting (EH) feedback using at least one resource associated with the CQI subgroup ID. 2. The method of claim 1 , wherein transmitting the EH feedback is in response to receiving from the BS a second control message indicating a schedule for the EH feedback. 3. The method of claim 1 , wherein transmitting the EH feedback comprises modulating a backscattered signal. 4. The method of claim 1 , wherein receiving the signal from the BS triggers generation of the CQI. 5. The method of claim 1 , wherein transmitting the CQI to the BS comprises transmitting the CQI using feedback resources that are based on an assigned WTRU ID. 6. The method of claim 1 , wherein receiving the first control message comprises receiving a broadcast control message. 7. The method of claim 1 , wherein receiving the first control message from the BS comprises receiving information elements having an indication of one or more of a separator domain, a thresholding parameter, or a separator function. 8. The method of claim 7 , wherein the information elements comprise one or more of:an indication of one or more thresholding values that separate a time/frequency resource grid; a bit map indication of the separation domain; or a bit map indication of a function of a separator. 9. The method of claim 8 , wherein the function of the separator is linear, the separation domain is frequency, and the thresholding value is a frequency resource index. 10. The method of claim 8 , wherein the bit map indication of the separation domain comprises any of time and frequency, and wherein the bit map indication of the function of the separator comprises any of a linear function, a circular function, and a parabolic function. 11. A wireless transmit/receive unit (WTRU) comprising circuitry, including a transmitter, a receiver, a processor, and memory, the WTRU configured to:receive a signal from a base station (BS) and generate a channel quality indication (CQI) based on the signal; transmit the CQI to the BS; receive a first control message from the BS comprising configuration information, wherein the configuration information includes information elements for configuring CQI subgroups; determine a CQI subgroup identifier (ID) based on the information elements included in the first control message; and transmit an energy harvesting (EH) feedback using at least one resource associated with the CQI subgroup ID. 12. The WTRU of claim 11 , wherein the EH feedback is in response to receiving from the BS a second control message indicating a schedule for the EH feedback. 13. The WTRU of claim 11 , wherein the EH feedback comprises a transmitted backscattered signal from the WTRU. 14. The WTRU of claim 11 , wherein the first control message from the BS comprises at least one information element having an indication of one or more of a separator domain, a thresholding parameter, or a separator function. 15. The WTRU of claim 14 , wherein the information elements received from the BS comprise one or more of:an indication of one or more thresholding values that separate a time/frequency resource grid; a bit map indication of the separation domain; or a bit map indication of a function of a separator. 16. A non-transitory computer readable medium having instructions which when executed by a computer perform a method of:receiving a signal from a base station (BS) and generating a channel quality indication (CQI) based on the signal; transmitting the CQI to the BS; receiving a first control message from the BS comprising configuration information, wherein the configuration information includes information elements for configuring CQI subgroups; determining a CQI subgroup identifier (ID) based on the information elements included in the received first control message; and transmitting an energy harvesting (EH) feedback using at least one resource associated with the CQI subgroup ID. 17. The non-transitory computer readable medium of claim 16 , wherein receiving the first control message from the BS comprises receiving information elements having indication of one or more of a separator domain, a thresholding parameter, or a separator function. 18. The non-transitory computer readable medium of claim 17 , wherein the information elements received from the BS comprise one or more of:an indication of one or more thresholding values that separate a time/frequency resource grid; a bit map indication of the separation domain; or a bit map indication of a function of a separator. 19. The non-transitory computer readable medium of claim 18 , wherein the function of the separator is linear, the separation domain is frequency, and the thresholding value is a frequency resource index. 20. The non-transitory computer readable medium of claim 18 , wherein the bit map indication of the separation domain comprises any of time and frequency, and wherein the bit map indication of the function of the separator comprises any of a linear function, a circular function, and a parabolic function.
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